{"api_version":"1","generated_at":"2026-09-09T09:12:26+00:00","cve":"CVE-2026-83537","urls":{"html":"https://cve.report/CVE-2026-83537","api":"https://cve.report/api/cve/CVE-2026-83537.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-83537","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83537"},"summary":{"title":"WP Express Checkout < 2.5.0 - Unauthenticated Payment Bypass via wpec_process_empty_payment","description":"The WP Express Checkout WordPress plugin before 2.5.0 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.","state":"PUBLISHED","assigner":"WPScan","published_at":"2026-09-09 07:16:58","updated_at":"2026-09-09 07:16:58"},"problem_types":["CWE-345 Insufficient Verification of Data Authenticity"],"metrics":[{"version":"3.1","source":"contact@wpscan.com","type":"Secondary","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","data":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://wpscan.com/vulnerability/02b39e4f-181d-4573-9175-bf5a6d71e531/","name":"https://wpscan.com/vulnerability/02b39e4f-181d-4573-9175-bf5a6d71e531/","refsource":"contact@wpscan.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-83537","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83537","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Unknown","product":"WP Express Checkout","version":"affected 2.5.0 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"ryan zegar","lang":"en"},{"source":"CNA","value":"WPScan","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://wordpress.org/plugins","defaultStatus":"unaffected","product":"WP Express Checkout","vendor":"Unknown","versions":[{"lessThan":"2.5.0","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"ryan zegar"},{"lang":"en","type":"coordinator","value":"WPScan"}],"descriptions":[{"lang":"en","value":"The WP Express Checkout WordPress plugin before 2.5.0 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying."}],"metrics":[{"cvssV3_1":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"description":"CWE-345 Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-09-09T06:25:06.539Z","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","shortName":"WPScan"},"references":[{"tags":["exploit","vdb-entry","technical-description"],"url":"https://wpscan.com/vulnerability/02b39e4f-181d-4573-9175-bf5a6d71e531/"}],"source":{"discovery":"EXTERNAL"},"title":"WP Express Checkout < 2.5.0 - Unauthenticated Payment Bypass via wpec_process_empty_payment","x_generator":{"engine":"WPScan CVE Generator"}}},"cveMetadata":{"assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","assignerShortName":"WPScan","cveId":"CVE-2026-83537","datePublished":"2026-09-09T06:25:06.539Z","dateReserved":"2026-08-31T17:01:05.328Z","dateUpdated":"2026-09-09T06:25:06.539Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-09 07:16:58","lastModifiedDate":"2026-09-09 07:16:58","problem_types":["CWE-345 Insufficient Verification of Data Authenticity"],"metrics":{"cvssMetricV31":[{"source":"contact@wpscan.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":1.4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"83537","Ordinal":"1","Title":"WP Express Checkout < 2.5.0 - Unauthenticated Payment Bypass via","CVE":"CVE-2026-83537","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"83537","Ordinal":"1","NoteData":"The WP Express Checkout WordPress plugin before 2.5.0 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.","Type":"Description","Title":"WP Express Checkout < 2.5.0 - Unauthenticated Payment Bypass via"}]}}}